package lab02.test20;

import java.util.Scanner;

/**
 * Created by Administrator on 2017-10-26.
 */
public class Test {

    public static void main(String[] args) {


        // 用户从键盘输入一行含有数字和字符的字符串
        String result;

        // 从键盘输入数据
        Scanner scanner = new Scanner(System.in);
        result = scanner.next();

//        System.out.println(result);



        // 仅仅输出字符串中的全部数字字符
        char tmp;
        int i;

        for (i = 0; i < result.length() - 1; i++){

            tmp = result.charAt(i);

            if (tmp >= '0' && tmp <= '9'){

                System.out.print(tmp);
            }
        }


    }
}
